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Finding the Third Proportional to 88.44 and 128.62

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Solution

The third proportional to 88.44 and 128.62 is: 187.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.44 : 128.62 = 128.62 : x
  2. Step 2: Convert to fraction form
    88.44/128.62 = 128.62/x
  3. Step 3: Cross multiply
    88.44x = 128.62 × 128.62
  4. Step 4: Simplify right side
    88.44x = 16,542.88
  5. Step 5: Solve for x
    x = 16,542.88/88.44
  6. Step 6: Final answer
    x = 187.06

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.